High-pressure cleaning machine

Abstract

The utility model discloses a high-pressure cleaning machine, which relates to the technical field of cleaning machines and comprises a machine body, and a first lifting platform and a second lifting platform are mounted at the feeding end and the discharging end of the machine body respectively. A pre-cleaning station, a high-pressure cleaning station, an idle station, a high-pressure rinsing station, a pure water rinsing station, a fixed-point water blowing station, a vacuum drying station and a cooling station are sequentially arranged in the machine body in the chain conveying direction. According to the utility model, the upper-layer conveying mechanism, the lower-layer conveying mechanism, the first lifting platform and the second lifting platform are matched with one another, so that the workpiece trays finish automatic cycle work of workpiece conveying and empty workpiece tray returning in the equipment; the tray cleaning device is simple in structure and convenient to operate, avoids the problem of tray cleanliness caused by most cleaning machine equipment adopting leakage type circulating trays, has high practicability, greatly improves the cleaning efficiency, and enables the workpiece trays to be clean and free of pollution in the circulating process in the cleaning machine.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning machines, in particular to a high-pressure cleaning machine. Background Art

[0002] A high-pressure cleaner is a machine that uses a power device (electric motor, gasoline engine, diesel engine) to make a high-pressure plunger pump generate high-pressure water to wash the surface of objects. It can peel off and flush away dirt to achieve the purpose of cleaning the surface of objects. After the workpiece is processed, the oil and debris on the surface of the workpiece need to be cleaned by the cleaning machine.

[0003] After a traditional through-type high-pressure cleaner completes the cleaning, rinsing and drying of the workpiece, it generally directly transports the pallet and the workpiece out of the cleaning equipment, and then uses manual or robot methods to move the pallet and the workpiece out of the equipment, and then manually places the pallet of the disassembled workpiece into the discharge end of the equipment, and repeats this process, which is not convenient to use.

[0004] In order to solve the above-mentioned problem, the existing high-pressure cleaning machine has developed a cleaning device for the pallet of the workpiece with external leakage circulation. However, after the equipment cleans the workpiece, the pallet rotates half a circle outside the equipment, which makes it easy for the pallet after the workpiece is removed to be contaminated with waste chips raised by the workshop, and then the contact surface between the pallet contaminated with waste chips and the workpiece cannot be cleaned properly. It is necessary to add personnel at the external circulation of the equipment to check or wipe the pallet before entering the equipment, which increases the labor intensity and reduces work efficiency. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a high-pressure cleaning machine in view of the current status of the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A high-pressure cleaning machine comprises a machine body, wherein a first lifting platform and a second lifting platform are installed at both the feeding end and the discharging end of the machine body, a pre-cleaning station, a high-pressure cleaning station, an empty station, a high-pressure rinsing station, a pure water rinsing station, a fixed-point water blowing station, a vacuum drying station and a cooling station are sequentially arranged inside the machine body along the chain conveying direction, an upper conveying mechanism which sequentially passes through the pre-cleaning station, the high-pressure cleaning station, the empty station, the high-pressure rinsing station, the pure water rinsing station and the fixed-point water blowing station is arranged between the first lifting platform and the second lifting platform, a lower conveying mechanism is arranged below the upper conveying mechanism, and a water tank filtering system is arranged outside the machine body.

[0008] Preferably, the first lifting platform comprises a lifting guide device, a lifting drive device and a first power roller, a frame is provided outside the first lifting platform, and the structure of the first lifting platform is consistent with that of the second lifting platform.

[0009] Preferably, the lower conveying mechanism includes a sprocket and a double-row chain, and the double-row chain is provided with a chain support, a pallet guide device, a pallet material stopper device, a pallet rear limit device, a material stopper cylinder arranged below the pallet material stopper device, and a material spacing cylinder arranged below the pallet rear limit device, and a conveying reducer is arranged outside the sprocket.

[0010] Preferably, the vacuum drying station includes a lower tank cover, an upper tank body and a vacuum pump, the upper tank body is provided with a lifting cylinder, a guide rod and a guide sleeve, the lower tank cover is provided with a second power roller, a detection device and a pipeline valve, the vacuum pump is arranged outside the machine body, and a condensation defogger is installed on the machine body.

[0011] Preferably, the fixed-point water blowing station includes an upper blowing box, a bottom blowing box, an industrial hot air unit and a blowing nozzle, and the upper blowing box is provided with a lifting cylinder, a guide rod and a guide sleeve which are connected through the top of the machine body.

[0012] Preferably, the pure water rinsing station comprises an upper spray pipe, a lower spray pipe and a pure water heating tank, and a plurality of groups of atomizing nozzles are equidistantly arranged outside the upper spray pipe and the lower spray pipe.

[0013] Preferably, the pre-cleaning station comprises an upper spray box and a bottom spray box, and the structure of the pre-cleaning station is the same as that of the high-pressure rinsing station. The upper spray box is provided with a lifting cylinder, a guide rod and a guide sleeve which are connected through the top of the machine body.

[0014] Preferably, the high-pressure cleaning station includes a lifting and rotating mechanism, a pallet clamping mechanism and a high-pressure cleaning mechanism, the pallet clamping mechanism is provided with a clamping cylinder, a clamping plate, a clamping cylinder and a clamping plate, the lifting and rotating mechanism is provided with a lifting assembly and a protective cover, and a bearing seat is provided at the connection between the lifting assembly and the protective cover.

[0015] Preferably, a lifting door is provided between the pre-cleaning station, the high-pressure cleaning station, the high-pressure rinsing station, the pure water rinsing station, the fixed-point water blowing station and the vacuum drying station, and an observation window is provided between the pre-cleaning station, the empty station, the high-pressure rinsing station, the pure water rinsing station, the fixed-point water blowing station and the vacuum drying station, a transition power roller is provided between the first lifting platform and the pre-cleaning station, the vacuum drying station and the cooling station, the cooling stations are distributed in two groups, and workpiece pallets are placed at the cooling stations.

[0016] Preferably, a high-pressure pump station and an electric control cabinet are provided in sequence on one side of the water tank filtration system. The water tank filtration system is provided with four groups of water tanks, namely, a first-level filter water tank for cleaning, a second-level filter water tank for cleaning, a rinsing water tank and a high-pressure cleaning water tank. The bottoms of the four groups of water tanks are all inclined structures, and multiple groups of water pumps are arranged outside the water tanks.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] 1. In the utility model, the upper conveying mechanism, the lower conveying mechanism, the first lifting platform and the second lifting platform cooperate with each other, so that the workpiece pallet can complete the automatic circulation of workpiece conveying and empty workpiece pallet returning in the equipment, avoiding the pallet cleanliness problem caused by most cleaning machine equipment using external leakage circulation pallets, having high practicality, greatly improving the cleaning efficiency, and making the workpiece pallet clean and pollution-free during the circulation process in the cleaning machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of a high-pressure cleaning machine of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of a high-pressure cleaning machine of the utility model;

[0021] Figure 3 It is a schematic diagram of the enlarged structure of point A of a high-pressure cleaning machine of the utility model;

[0022] Figure 4 It is a schematic diagram of the enlarged structure of point B of a high-pressure cleaning machine of the utility model.

[0023] Legend:

[0024] 1. Machine body; 2. Water tank filtration system; 3. High-pressure pump station; 4. Electric control cabinet; 5. Vacuum drying station; 501. Lower tank cover; 502. Upper tank body; 503. Vacuum pump; 6. Fixed-point water blowing station; 601. Upper air blowing box; 602. Bottom air blowing box; 603. Industrial hot air unit; 604. Air blowing nozzle; 7. Pure water rinsing station; 701. Lower nozzle; 702. Upper nozzle; 8. High-pressure rinsing station; 9. Empty station; 10. High-pressure cleaning station; 1001. Lifting and rotating mechanism; 1002. Tray clamping mechanism; 1003. High-pressure cleaning mechanism; 11. Pre-cleaning station; 1101. Upper spray box ; 1102, bottom spray box; 12, rack; 13, first lifting platform; 1301, lifting guide device; 1302, lifting drive device; 1303, first power roller; 14, pure water heating tank; 15, cooling station; 16, observation window; 17, lower conveying mechanism; 1701, sprocket; 1702, double-row chain; 18, lifting door; 19, material separation cylinder; 20, material blocking cylinder; 21, second lifting platform; 22, workpiece pallet; 23, condensation defogger; 24, upper conveying mechanism; 25, clamping cylinder; 26, clamping plate; 27, pressing cylinder; 28, pressing plate; 29, lifting assembly; 30, protective cover. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "above", "below", "inner wall", "outer wall", "inside", "outside", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Please refer to Figure 1-Figure 4A high-pressure cleaning machine comprises a machine body 1, wherein a first lifting platform 13 and a second lifting platform 21 are installed at both the feeding end and the discharging end of the machine body 1, and a pre-cleaning station 11, a high-pressure cleaning station 10, an empty station 9, a high-pressure rinsing station 8, a pure water rinsing station 7, a fixed-point water blowing station 6, a vacuum drying station 5, and a cooling station 15 are sequentially arranged inside the machine body 1 along the chain conveying direction, so that a workpiece pallet 22 is lifted from the first lifting platform 13 to be parallel to an upper conveying mechanism 24 in the machine body 1, and the workpiece pallet 22 is sent into the upper conveying mechanism 24 by starting the power source of the first power roller 1303 inside the first lifting platform 13, and passes through the pre-cleaning station 11, the high-pressure cleaning station 10, the empty station 9, the high-pressure rinsing station 8, the pure water rinsing station 7, the fixed-point water blowing station 6, the vacuum drying station 5, and the cooling station 15 in sequence. 10, empty station 9, high-pressure rinsing station 8, pure water rinsing station 7, fixed-point water blowing station 6, vacuum drying station 5 and cooling station 15 return to the second lifting platform 21 to complete the multi-stage cleaning, rinsing, drying and cooling of the workpiece pallet 22. An upper conveying mechanism 24 is provided between the first lifting platform 13 and the second lifting platform 21, which sequentially passes through the pre-cleaning station 11, high-pressure cleaning station 10, empty station 9, high-pressure rinsing station 8, pure water rinsing station 7, and fixed-point water blowing station 6. A lower conveying mechanism 17 is provided below the upper conveying mechanism 24. The length of the upper conveying mechanism 24 is less than the length of the lower conveying mechanism 17. A water tank filtration system 2 is provided outside the machine body 1.

[0029] Furthermore, the first lifting platform 13 includes a lifting guide device 1301 , a lifting drive device 1302 and a first power roller 1303 . A frame 12 is provided outside the first lifting platform 13 . The structure of the first lifting platform 13 is consistent with that of the second lifting platform 21 .

[0030] By adopting the above-mentioned technical scheme, after the workpiece feeding is completed, the first lifting platform 13 cooperates with the lifting guide device 1301 to descend to the lower conveying mechanism 17 to receive the returned empty tray, and then rises to the conveying height of the cleaning machine through the first lifting platform 13, so as to facilitate the subsequent automatic delivery of the workpiece pallet 22 to the pre-cleaning station 11, and complete the internal self-circulation of the workpiece pallet 22, which greatly improves the cleaning cleanliness of the equipment and speeds up the cleaning efficiency (it should be noted that the working principle of the second lifting platform 21 is consistent with the working principle of the first lifting platform 13).

[0031] Furthermore, the lower conveying mechanism 17 includes a sprocket 1701 and a double-row chain 1702. The double-row chain 1702 is provided with a chain support bar, a pallet guide device, a pallet material stopper device, a pallet rear limit device, a material stopper cylinder 20 arranged below the pallet material stopper device, and a material spacing cylinder 19 arranged below the pallet rear limit device. A conveying reducer is arranged outside the sprocket 1701.

[0032] By adopting the above technical scheme, through the setting of the lower conveying mechanism 17, the empty tray is returned from the second lifting platform 21 to the first lifting platform 13, completing the automatic circulation of the workpiece pallet 22 in the equipment; the double-row chain 1702 adopts a double-row overhead roller chain; the chain support is made of high-density polyethylene material; the workpiece pallet 22 adopts an aluminum plate hollow structure, and the contact part with the double-row chain 1702 is made of wear-resistant material; a power source is provided inside the lower conveying mechanism 17, and the power source adopts a drive motor or a reducer, and the reducer is installed in a reverse torque manner and is provided with an overload protection detection switch. When an abnormal situation occurs in the conveying system, the reducer can be effectively protected, and a driving cylinder, a rotating shaft, a rotating swing arm, a bearing seat, a material stop plate and a sealing element are provided inside the pallet front stop device (the pallet front stop device is an existing mature technology, so the component installation structure of the device will not be described in detail). When the detection switch detects the workpiece pallet 22, the driving cylinder drives the rotating shaft to rotate, and the material stop plate rotates from the release state to the material stop state.

[0033] Furthermore, the vacuum drying station 5 includes a lower tank cover 501, an upper tank body 502 and a vacuum pump 503. The upper tank body 502 is provided with a lifting cylinder, a guide rod and a guide sleeve. The lower tank cover 501 is provided with a second power roller, a detection device and a pipeline valve. The vacuum pump 503 is arranged outside the machine body 1, and a condensation defogger 23 is installed on the machine body 1.

[0034] By adopting the above technical solution, when the workpiece pallet 22 is transported to the right position, the upper tank body 502 is lowered through the lifting cylinder in cooperation with the guide rod and the guide sleeve, and the lifting door 18 is started to descend at the same time, the vacuum valve is opened and the air supply valve is closed, and the workpiece on the workpiece pallet 22 is vacuumed. After the process is completed, the vacuum valve is closed and the air supply valve is opened to supply air to the tank body, and each mechanism is reset. The upper conveying mechanism 24 is started to send the workpiece pallet 22 to the next process. A digital vacuum pressure gauge is provided on the pipeline, and an air filter is installed on the vacuum pipeline to prevent secondary pollution to the product when breaking the vacuum and supplying air.

[0035] Furthermore, the fixed-point water blowing station 6 includes an upper blowing box 601, a bottom blowing box 602, an industrial hot air unit 603 and a blowing nozzle 604. The upper blowing box 601 is provided with a lifting cylinder, a guide rod and a guide sleeve which are connected to the top of the body 1.

[0036] By adopting the above technical solution, when the workpiece pallet 22 is transported to the right position, the upper blow box 601 is lowered through the lifting cylinder in cooperation with the guide rod and the guide sleeve, and the lifting door 18 is lowered at the same time, the solenoid valve is opened, and the upper blow box 601 and the bottom blow box 602 are cooperated to blow water on the upper and lower surfaces and holes of the workpiece. After the process is completed, the solenoid valve is closed and the industrial hot air unit 603 is turned on to blow hot air to the surface of the workpiece. After the preheating process is completed, each mechanism is reset, and the workpiece pallet 22 is sent to the next process via the upper conveying mechanism 24.

[0037] Furthermore, the pure water rinsing station 7 includes an upper nozzle 702, a lower nozzle 701 and a pure water heating tank 14, and a plurality of groups of atomizing nozzles are equidistantly arranged outside the upper nozzle 702 and the lower nozzle 701.

[0038] By adopting the above technical solution, when the workpiece pallet 22 is transported to its place, the lifting door 18 is started to descend, the solenoid valve is opened, and the upper nozzle 702 and the lower nozzle 701 are coordinated to spray pure water on the upper and lower surfaces of the workpiece. After the process is completed, each mechanism is reset and the workpiece pallet 22 is sent to the next process via the upper conveying mechanism 24.

[0039] Furthermore, the pre-cleaning station 11 includes an upper spray box 1101 and a bottom spray box 1102. The structure of the pre-cleaning station 11 is the same as that of the high-pressure rinsing station 8. The upper spray box 1101 is provided with a lifting cylinder, a guide rod and a guide sleeve which are connected to the top of the machine body 1.

[0040] By adopting the above technical solution, when the workpiece pallet 22 is transported to the pre-cleaning station 11, the upper spray box 1101 is lowered through the lifting cylinder in conjunction with the guide rod and the guide sleeve, and the lifting door 18 is lowered at the same time, and the cleaning pump is turned on to perform fixed-point cleaning on the holes on the upper and lower surfaces of the workpiece. After the process is completed, each mechanism is reset, and the workpiece pallet 22 is sent to the next process via the upper conveying mechanism 24. The operation mode of the parts in the high-pressure rinsing station 8 is the same as the operation mode of the above-mentioned station parts.

[0041] Furthermore, the high-pressure cleaning station 10 includes a lifting and rotating mechanism 1001, a pallet clamping mechanism 1002 and a high-pressure cleaning mechanism 1003. The pallet clamping mechanism 1002 is provided with a clamping cylinder 25, a clamping plate 26, a clamping cylinder 27 and a clamping plate 28. The lifting and rotating mechanism 1001 is provided with a lifting component 29 and a protective cover 30. A bearing seat is provided at the connection between the lifting component 29 and the protective cover 30.

[0042] By adopting the above technical solution, when the workpiece pallet 22 is transported to its place, the protective cover 30 and the pallet clamping mechanism 1002 are lowered through the lifting assembly 29 (the lifting assembly 29 includes a lifting cylinder, a guide rod and a guide sleeve), and the lifting door 18 is lowered at the same time, so that the pallet clamping mechanism 1002 clamps the workpiece pallet 22, and then it is lifted and high-pressure cleaned. After the process is completed, the pallet clamping mechanism 1002 releases the workpiece pallet 22, and each mechanism is reset. The workpiece pallet 22 is sent to the next process via the upper conveying mechanism 24.

[0043] Furthermore, a lifting door 18 is provided between the pre-cleaning station 11, the high-pressure cleaning station 10, the high-pressure rinsing station 8, the pure water rinsing station 7, the fixed-point water blowing station 6 and the vacuum drying station 5, and an observation window 16 is provided between the pre-cleaning station 11, the empty station 9, the high-pressure rinsing station 8, the pure water rinsing station 7, the fixed-point water blowing station 6 and the vacuum drying station 5, and a transition power roller is provided between the first lifting platform 13 and the pre-cleaning station 11 and the vacuum drying station 5 and the cooling station 15, and there are two groups of cooling stations 15, and workpiece pallets 22 are placed in the cooling stations 15.

[0044] By adopting the above-mentioned technical scheme, when the workpiece pallet 22 passes through any of the above-mentioned processes, the setting of the lifting door 18 can prevent the liquid sprayed from each workstation interval from leaking into other workstation intervals, thereby affecting the cleaning and rinsing effect of the workpiece pallet 22. When the workpiece pallet 22 is transported to the right place, the protective cover 30 and the pallet clamping mechanism 1002 are lowered by the lifting component 29 (the lifting component 29 includes a lifting cylinder, a guide rod and a guide sleeve), and the lifting door 18 is lowered at the same time, so that the pallet clamping mechanism 1002 clamps the workpiece pallet 22, lifts it, and performs high-pressure cleaning. After the process is completed, the pallet clamping mechanism 1002 releases the workpiece pallet 22, each mechanism is reset, and the workpiece pallet 22 is sent to the next process via the upper conveying mechanism 24.

[0045] Furthermore, a high-pressure pump station 3 and an electric control cabinet 4 are provided in sequence on one side of the water tank filtration system 2. The water tank filtration system 2 is provided with four groups of water tanks, namely, a first-level filter water tank for cleaning, a second-level filter water tank for cleaning, a rinsing water tank and a high-pressure cleaning water tank. The bottoms of the four groups of water tanks are all inclined structures, and multiple groups of water pumps are arranged outside the water tanks.

[0046] By adopting the above technical scheme, the sewage after cleaning in the equipment passes through multiple groups of water pumps, and the sewage is introduced into the cleaning first-level filter water tank, the cleaning second-level filter water tank, the rinsing water tank and the high-pressure cleaning water tank for filtration and storage. The multiple groups of water pumps are cleaning pumps, transfer pumps, rinsing pumps, high-pressure pump pre-water supply pumps and high-pressure pumps. The water tank filtration system 2 can be externally connected to an oil remover, a liquid level meter and a heater.

[0047] Working principle: When in use, firstly, manually place the workpiece on the workpiece tray 22, start the power source of the first power roller 1303 on the first lifting platform 13, so that it can send the workpiece tray 22 into the upper conveying mechanism 24, so that the workpiece passes through the pre-cleaning station 11, the high-pressure cleaning station 10, the empty station 9, the high-pressure rinsing station 8, the pure water rinsing station 7, the fixed-point water blowing station 6, the vacuum drying station 5 and the cooling station 15 in sequence and enters the second lifting platform 21, completing the multi-stage cleaning, rinsing, drying and cooling of the workpiece tray 22, and the multi-stage cleaning process of the workpiece on the tray is carried out by connecting the city water in the pre-cleaning station 11 and the high-pressure cleaning station 10 and adding the cleaning agent. The cleaning effect is good, and the high-pressure rinsing station 8 is connected to the city water for a first-level rinsing, and the pure water is connected to the pure water rinsing station 7 to spray the pure water on the workpiece surface to complete multi-level rinsing, so that the workpiece cleanliness is high, and the setting of multiple cooling stations 15 makes the cooling effect of the workpiece good, which greatly improves the cleaning efficiency. Finally, after the workpiece tray 22 is sent to the second lifting platform 21, the workpiece is taken out manually, and then descends to the lower conveying mechanism 17 through the second lifting platform 21, and the empty tray is returned to the first lifting platform 13, completing the automatic circulation of the workpiece tray 22 in the equipment pump, thereby improving the degree of automation of the equipment and making the workpiece tray 22 clean and pollution-free during the cleaning process.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high pressure cleaning machine, characterized in that: include: A machine body, wherein a first lifting platform and a second lifting platform are installed at the feeding end and the discharging end of the machine body, and a pre-cleaning station, a high-pressure cleaning station, an empty station, a high-pressure rinsing station, a pure water rinsing station, a fixed-point water blowing station, a vacuum drying station, and a cooling station are sequentially arranged inside the machine body along the chain conveying direction; an upper conveying mechanism is arranged between the first lifting platform and the second lifting platform, which sequentially passes through the pre-cleaning station, the high-pressure cleaning station, the empty station, the high-pressure rinsing station, the pure water rinsing station, and the fixed-point water blowing station; a lower conveying mechanism is arranged below the upper conveying mechanism, and a water tank filtration system is arranged outside the machine body.

2. A high pressure cleaning machine according to claim 1, characterized in that: The first lifting platform comprises a lifting guide device, a lifting drive device and a first power roller. A frame is arranged outside the first lifting platform. The structure of the first lifting platform is consistent with that of the second lifting platform.

3. A high pressure cleaning machine according to claim 1, characterized in that: The lower conveying mechanism includes a sprocket and a double-row chain. The double-row chain is provided with a chain support, a pallet guide device, a pallet material stopper, a pallet rear limit device, a material stopper cylinder arranged below the pallet material stopper device and a material spacing cylinder arranged below the pallet rear limit device. A conveying reducer is arranged outside the sprocket.

4. A high pressure cleaning machine according to claim 1, characterized in that: The vacuum drying station includes a lower tank cover, an upper tank body and a vacuum pump. The upper tank body is provided with a lifting cylinder, a guide rod and a guide sleeve. The lower tank cover is provided with a second power roller, a detection device and a pipeline valve. The vacuum pump is arranged outside the machine body, and a condensation defogger is installed on the machine body.

5. A high pressure cleaning machine according to claim 1, characterized in that: The fixed-point water blowing station comprises an upper blowing box, a bottom blowing box, an industrial hot air unit and a blowing nozzle. The upper blowing box is provided with a lifting cylinder, a guide rod and a guide sleeve which are connected through the top of the machine body.

6. A high pressure cleaning machine according to claim 1, characterized in that: The pure water rinsing station comprises an upper spray pipe, a lower spray pipe and a pure water heating tank, and multiple groups of atomizing nozzles are equidistantly arranged outside the upper spray pipe and the lower spray pipe.

7. A high pressure cleaning machine according to claim 1, characterized in that: The pre-cleaning station comprises an upper spray box and a bottom spray box. The structure of the pre-cleaning station is the same as that of the high-pressure rinsing station. The upper spray box is provided with a lifting cylinder, a guide rod and a guide sleeve which are connected through the top of the machine body.

8. The high pressure cleaning machine according to claim 1, characterized in that: The high-pressure cleaning station includes a lifting and rotating mechanism, a pallet clamping mechanism and a high-pressure cleaning mechanism. The pallet clamping mechanism is provided with a clamping cylinder, a clamping plate, a pressing cylinder and a pressing plate. The lifting and rotating mechanism is provided with a lifting component and a protective cover. A bearing seat is provided at the connection between the lifting component and the protective cover.

9. The high pressure cleaning machine according to claim 1, characterized in that: A lifting door is arranged between the pre-cleaning station, the high-pressure cleaning station, the high-pressure rinsing station, the pure water rinsing station, the fixed-point water blowing station and the vacuum drying station, and an observation window is arranged between the pre-cleaning station, the empty station, the high-pressure rinsing station, the pure water rinsing station, the fixed-point water blowing station and the vacuum drying station. A transition power roller is arranged between the first lifting platform and the pre-cleaning station, the vacuum drying station and the cooling station. The cooling stations are distributed in two groups, and workpiece pallets are placed at the cooling stations.

10. The high pressure cleaning machine according to claim 1, characterized in that: A high-pressure pump station and an electric control cabinet are provided in sequence on one side of the water tank filtration system. The water tank filtration system is provided with four groups of water tanks, namely, a first-level filtration water tank for cleaning, a second-level filtration water tank for cleaning, a rinsing water tank and a high-pressure cleaning water tank. The bottoms of the four groups of water tanks are all inclined structures, and multiple groups of water pumps are provided outside the water tanks.

Images